Patriotic American Flag Dogs Print Tank Top and Romper Dog and Owner Matching OutfitsSize Neck Girth Chest Back Length Weight S 9. 4 14. 2 9. 8 5 10 lbs M 10. 2 16. 1 12. 2 11 16 lbs L 11. 8 18. 1 14. 2 17 24 lbs XL 13. 4 20. 9 16. 1 25 32 lbs 2XL 14. 2 22. 8 18. 1 33 40 lbs Size US Bust Waist Hips XXS 4 30. 3~32. 7 25. 6~28 34. 3~36. 6 XS 6 32. 7~35 28~30. 3 36. 6~39 S 8 35~37. 4 30. 3~32. 7 39~41. 3 M 10 37. 4~39. 8 32. 7~35 41. 3~43. 7 L 12 39. 8~42. 1 35~37. 4 43. 7~46. 1 1X 14 42. 1~44. 5 37. 4~39. 8 46. 1~48. 4 2X 16 44. 5~46. 9